恐龍卡第 0123 張，共 2 027 張

Antarcticavis

名字的意思： “Antarctic bird”1

吃：肉早期鳥類白堊紀晚期

Antarcticavis was an ancient bird that lived in Antarctica during the time of the dinosaurs. It was about the size of a modern duck and probably hunted for food along the shores. This bird is one of the oldest known from the frozen continent.2 1

生存年代

72 到 66 百萬年前3

白堊紀晚期

化石發現地

Vega Island, Antarctica3 1

最高速度

時速約 27 公里（17 英里）

飛行, 估計值

牠生活在什麼時候？

三疊紀

侏羅紀

白堊紀

2 億 5200 萬年前20114566，小行星撞地球

牠有多快？

走路的人 時速約 5 公里 (3 mph)

騎腳踏車的小朋友 時速約 12 公里 (7 mph)

Antarcticavis 時速約 27 公里 (17 mph)

一匹飛奔的馬 時速約 65 公里 (40 mph)

一隻獵豹 時速約 100 公里 (62 mph)

酷東西

趣味知識

Antarcticavis lived about 72 to 66 million years ago, during the Maastrichtian stage of the Late Cretaceous.3

Its name means 'Antarctic bird' because its fossils were found in Antarctica.1

Scientists are not sure exactly where Antarcticavis fits in the bird family tree. Some think it is close to modern birds, while others place it with water birds like loons and ducks.1

The only known fossil of Antarcticavis is a partial skeleton, including parts of the wings, legs, and backbone.1

Antarcticavis is the oldest bird ever described from Antarctica.2

A 2025 study found that Antarcticavis had bones similar to modern diving birds, like mergansers and gulls, suggesting it was a good swimmer.1

Antarcticavis 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Antarcticavis 可能的樣子。這只是猜測：真正的動物可能長得不一樣，也沒有人知道牠真正的顏色。

你們都在問

關於 Antarcticavis 最常被問的問題

?How big was Antarcticavis?

It was about the size of a modern duck.1

?Could Antarcticavis swim?

Yes, it was probably a good swimmer. A 2025 study found that its bones are similar to those of modern diving birds like mergansers and gulls.1

?What did Antarcticavis eat?

Scientists are not sure exactly what it ate, but it probably hunted for food along the shores of Antarctica.1

?Is Antarcticavis a dinosaur?

Yes, Antarcticavis is a dinosaur. All birds are members of the dinosaur group, specifically the theropod dinosaurs.1

給恐龍專家

學名: Antarcticavis
命名者: Cordes-Person et al. 20203
類群: 早期鳥類
科 / 演化支: Ornithuromorpha3
分類: Theropoda > Avialae3
岩石的年代: 72 到 66 百萬年 (Maastrichtian)3
岩層: Snow Hill Island3
國家: 南極洲3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Antarcticavis was named in 2020 by Amanda Cordes-Person and colleagues. The fossils were found on Vega Island in Antarctica, at a site called Al's Bird Site.3 1
仍有爭議: Scientists are still debating exactly where Antarcticavis belongs in the bird family tree. It might be a very early relative of modern birds, or it might be part of a group that includes loons and grebes.1